Add hex108 as a scheduler reviewer

hex108 · hex108 · commit 729657dc0271 · 2019-08-22T09:54:14.000+08:00
diff --git a/OWNERS_ALIASES b/OWNERS_ALIASES
@@ -159,6 +159,7 @@ aliases:
     - wgliang
     - ahg-g
     - draveness
+    - hex108
 
   sig-cli-maintainers:
     - adohe
